Add persistent memory to your AI workflows. Store, retrieve, and manage memories across sessions using the Mem0 Platform. Works with Claude Code (CLI), Claude Cowork (desktop app), Cursor, and Codex.

You must complete this step before installing the plugin.

1. Sign up at app.mem0.ai if you haven't already

2. Go to app.mem0.ai/dashboard/api-keys

3. Click Create API Key and copy the key (starts with m0-)

4. Add it to your shell profile:

   # For zsh (default on macOS)
   echo 'export MEM0_API_KEY="m0-your-api-key"' >> ~/.zshrc
   source ~/.zshrc
   
   # For bash
   echo 'export MEM0_API_KEY="m0-your-api-key"' >> ~/.bashrc
   source ~/.bashrc

5. Confirm it's set:

   echo $MEM0_API_KEY
   # Should print: m0-your-api-key

Choose one of the options below. All require MEM0_API_KEY to be set first (see above).

Claude Code and Claude Cowork share the same plugin system.

CLI:

/plugin marketplace add mem0ai/mem0
/plugin install mem0@mem0-plugins

Cowork desktop app: Open the Cowork tab, click Customize in the sidebar, click Browse plugins, and install Mem0.

This installs the full plugin including the MCP server, lifecycle hooks (automatic memory capture), and the Mem0 SDK skill.

Option A — Repo marketplace (recommended for teams):

Add the plugin marketplace to your repo root (already included in this repository):

.agents/plugins/marketplace.json

Then in Codex, browse the repo's plugin directory and install Mem0.

Option B — Personal marketplace:

Add to ~/.agents/plugins/marketplace.json:

{
  "name": "mem0-plugins",
  "interface": {
    "displayName": "Mem0 Plugins"
  },
  "plugins": [
    {
      "name": "mem0",
      "source": {
        "source": "local",
        "path": "/path/to/mem0/mem0-plugin"
      },
      "policy": {
        "installation": "AVAILABLE",
        "authentication": "ON_INSTALL"
      },
      "category": "Productivity"
    }
  ]
}

Option C — Manual MCP configuration:

Add to your Codex MCP config:

{
  "mcpServers": {
    "mem0": {
      "type": "http",
      "url": "https://mcp.mem0.ai/mcp/",
      "headers": {
        "Authorization": "Token ${MEM0_API_KEY}"
      }
    }
  }
}

This installs the MCP server and the Mem0 SDK skill. Codex uses the skill-based memory protocol instead of lifecycle hooks.

Already have mem0 configured as an MCP server? Remove the existing entry from your Cursor MCP settings before installing to avoid duplicate tools.

Option A — One-click deeplink (installs MCP server only):

Install Mem0 MCP in Cursor

Option B — Manual configuration (MCP server only):

Add the following to your .cursor/mcp.json:

{
  "mcpServers": {
    "mem0": {
      "url": "https://mcp.mem0.ai/mcp/",
      "headers": {
        "Authorization": "Token ${env:MEM0_API_KEY}"
      }
    }
  }
}

Option C — Cursor Marketplace (full plugin with hooks and skills):

Install from the Cursor Marketplace for the complete experience including lifecycle hooks and the Mem0 SDK skill.

After installing, confirm the MCP server is connected:

1. Start a new session (or restart your current one)
2. Ask: "List my mem0 entities" or "Search my memories for hello"
3. If the mem0 tools appear and respond, you're all set

• MCP Server — Connects to the Mem0 remote MCP server (mcp.mem0.ai), providing tools to add, search, update, and delete memories. No local dependencies required.
• Lifecycle Hooks — Automatic memory capture at key points: session start, context compaction, task completion, and session end. (Claude Code/Cursor only)
• Mem0 SDK Skill — Guides the AI on how to integrate the Mem0 SDK (Python & TypeScript) into your applications.
• Memory Protocol Skill — Codex-specific skill that instructs the agent to retrieve relevant memories at task start, store learnings on completion, and capture session state before context loss. Replaces lifecycle hooks on platforms that don't support them.

Once installed, the following tools are available:

Apache-2.0